The antonyms for the term "latest wrinkles" are past trends, old-fashioned, outdated, obsolete, and outmoded. These terms imply that the trend, technology, or style mentioned has lost popularity, relevance, or usefulness with the passage of time. While the latest wrinkle refers to the most recent development or innovation, these antonyms suggest an idea that has gone out of fashion, use or trend. They denote the opposite of new and innovative, and imply that the concept is out-of-date or irrelevant in the current times. As language and society advance, it's essential to recognize and understand antonyms that indicate the opposite of the newest trend.